longwall mining stability in take-off phase
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ID: 132968
2013
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Abstract
Mechanised longwall mining is one of the more commonly employed exploitation methods in underground mines in the north of Spain as well as in the rest of the world. It is continuously changing and evolving, with new techniques, technology, equipment, and face management practices and systems appearing for the purposes of improving aspects such as operational and financial performances and, above all, the safety of the miners. Despite its importance, there are no regulations for the mining of longwall coal seams.
This work aims to contribute to an advance in the design and optimisation of the roof support in longwall mining, analysing the stability of the roof using a method based on the resistance of materials, which considers the characteristics of the properties of the roof materials. The influence of not only the individual elements of support but also the coalface, which is considered one more supporting element, is investigated. The longitudinal and transverse spacings of the support and the number of walkways constituting the exploitation panel are analysed. The proposed formulation is validated by information gathered in a mine located in the region of Castilla-Leon.
| Reference Key |
prendes-gero2013journallongwall
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|---|---|
| Authors | ;María-Belén Prendes-Gero;José Alcalde-Gonzalo;Pedro Ramírez-Oyanguren;Francisco-José Suárez-Domínguez;Martina-Inmaculada Álvarez-Fernández |
| Journal | Chemico-biological interactions |
| Year | 2013 |
| DOI |
10.1155/2013/859803
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| URL | |
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